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Appendix
This write up is looking at the updated breakdowns for CCI, ASA, and Elixhauser.
Table 1. The THA full cohort
No Aspirin Aspirin P Value
N=343 N=269
CCI: <0.001
0 249 (72.6%) 224 (86.2%)
1 18 (5.25%) 13 (5.00%)
2 25 (7.29%) 5 (1.92%)
3 12 (3.50%) 7 (2.69%)
4 15 (4.37%) 3 (1.15%)
5 9 (2.62%) 6 (2.31%)
6 6 (1.75%) 0 (0.00%)
7 1 (0.29%) 0 (0.00%)
8 1 (0.29%) 0 (0.00%)
9 2 (0.58%) 1 (0.38%)
10 2 (0.58%) 1 (0.38%)
11 2 (0.58%) 0 (0.00%)
13 1 (0.29%) 0 (0.00%)
ASA: <0.001
0 2 (0.94%) 0 (0.00%)
1 0 (0.00%) 10 (4.90%)
2 40 (18.8%) 69 (33.8%)
3 157 (73.7%) 125 (61.3%)
4 14 (6.57%) 0 (0.00%)
Elixhauser: <0.001
0 235 (68.5%) 225 (83.6%)
1 7 (2.04%) 3 (1.12%)
2 9 (2.62%) 2 (0.74%)
3 7 (2.04%) 5 (1.86%)
4 5 (1.46%) 1 (0.37%)
5 13 (3.79%) 4 (1.49%)
6 3 (0.87%) 2 (0.74%)
7 1 (0.29%) 1 (0.37%)
8 5 (1.46%) 3 (1.12%)
9 4 (1.17%) 1 (0.37%)
10 5 (1.46%) 3 (1.12%)
11 4 (1.17%) 1 (0.37%)
12 2 (0.58%) 1 (0.37%)
13 2 (0.58%) 2 (0.74%)
14 6 (1.75%) 1 (0.37%)
15 3 (0.87%) 1 (0.37%)
16 1 (0.29%) 0 (0.00%)
17 4 (1.17%) 0 (0.00%)
18 3 (0.87%) 0 (0.00%)
19 1 (0.29%) 0 (0.00%)
20 2 (0.58%) 1 (0.37%)
22 0 (0.00%) 1 (0.37%)
23 0 (0.00%) 2 (0.74%)
24 2 (0.58%) 0 (0.00%)
25 1 (0.29%) 1 (0.37%)
26 2 (0.58%) 0 (0.00%)
28 1 (0.29%) 0 (0.00%)
29 1 (0.29%) 0 (0.00%)
31 1 (0.29%) 0 (0.00%)
32 1 (0.29%) 0 (0.00%)
37 0 (0.00%) 1 (0.37%)
Table 2. THA and High risk only
No Aspirin Aspirin P Value
N=111 N=16
CCI: 1.000
0 104 (93.7%) 15 (100%)
1 1 (0.90%) 0 (0.00%)
3 1 (0.90%) 0 (0.00%)
6 1 (0.90%) 0 (0.00%)
8 1 (0.90%) 0 (0.00%)
11 1 (0.90%) 0 (0.00%)
ASA: 1.000
2 18 (17.3%) 3 (18.8%)
3 80 (76.9%) 13 (81.2%)
4 6 (5.77%) 0 (0.00%)
Elixhauser: 1.000
0 104 (93.7%) 16 (100%)
18 1 (0.90%) 0 (0.00%)
19 1 (0.90%) 0 (0.00%)
20 1 (0.90%) 0 (0.00%)
24 1 (0.90%) 0 (0.00%)
25 1 (0.90%) 0 (0.00%)
29 1 (0.90%) 0 (0.00%)
32 1 (0.90%) 0 (0.00%)
Table 3. THA and Standard risk only
No Aspirin Aspirin P Value
N=232 N=253
CCI: <0.001
0 145 (62.5%) 209 (85.3%)
1 17 (7.33%) 13 (5.31%)
2 23 (9.91%) 5 (2.04%)
3 11 (4.74%) 7 (2.86%)
4 15 (6.47%) 3 (1.22%)
5 9 (3.88%) 6 (2.45%)
6 5 (2.16%) 0 (0.00%)
7 1 (0.43%) 0 (0.00%)
9 2 (0.86%) 1 (0.41%)
10 2 (0.86%) 1 (0.41%)
11 1 (0.43%) 0 (0.00%)
13 1 (0.43%) 0 (0.00%)
ASA: <0.001
0 2 (1.83%) 0 (0.00%)
1 0 (0.00%) 10 (5.32%)
2 22 (20.2%) 66 (35.1%)
3 77 (70.6%) 112 (59.6%)
4 8 (7.34%) 0 (0.00%)
Elixhauser: <0.001
0 131 (56.5%) 209 (82.6%)
1 7 (3.02%) 3 (1.19%)
2 9 (3.88%) 2 (0.79%)
3 7 (3.02%) 5 (1.98%)
4 5 (2.16%) 1 (0.40%)
5 13 (5.60%) 4 (1.58%)
6 3 (1.29%) 2 (0.79%)
7 1 (0.43%) 1 (0.40%)
8 5 (2.16%) 3 (1.19%)
9 4 (1.72%) 1 (0.40%)
10 5 (2.16%) 3 (1.19%)
11 4 (1.72%) 1 (0.40%)
12 2 (0.86%) 1 (0.40%)
13 2 (0.86%) 2 (0.79%)
14 6 (2.59%) 1 (0.40%)
15 3 (1.29%) 1 (0.40%)
16 1 (0.43%) 0 (0.00%)
17 4 (1.72%) 0 (0.00%)
18 2 (0.86%) 0 (0.00%)
20 1 (0.43%) 1 (0.40%)
22 0 (0.00%) 1 (0.40%)
23 0 (0.00%) 2 (0.79%)
24 1 (0.43%) 0 (0.00%)
25 0 (0.00%) 1 (0.40%)
26 2 (0.86%) 0 (0.00%)
28 1 (0.43%) 0 (0.00%)
31 1 (0.43%) 0 (0.00%)
37 0 (0.00%) 1 (0.40%)
Table 4. The HA full cohort.
No Aspirin Aspirin P Value
N=329 N=182
CCI: <0.001
0 197 (59.9%) 116 (67.1%)
1 40 (12.2%) 17 (9.83%)
2 17 (5.17%) 10 (5.78%)
3 16 (4.86%) 8 (4.62%)
4 12 (3.65%) 8 (4.62%)
5 16 (4.86%) 4 (2.31%)
6 16 (4.86%) 3 (1.73%)
7 4 (1.22%) 1 (0.58%)
8 6 (1.82%) 4 (2.31%)
9 2 (0.61%) 1 (0.58%)
10 2 (0.61%) 1 (0.58%)
11 1 (0.30%) 0 (0.00%)
ASA: <0.001
1 0 (0.00%) 6 (5.71%)
2 23 (15.6%) 32 (30.5%)
3 115 (78.2%) 65 (61.9%)
4 9 (6.12%) 2 (1.90%)
Elixhauser: <0.001
0 177 (53.8%) 120 (65.9%)
1 1 (0.30%) 0 (0.00%)
2 13 (3.95%) 4 (2.20%)
3 5 (1.52%) 4 (2.20%)
4 6 (1.82%) 2 (1.10%)
5 23 (6.99%) 11 (6.04%)
6 6 (1.82%) 4 (2.20%)
7 9 (2.74%) 2 (1.10%)
8 3 (0.91%) 0 (0.00%)
9 10 (3.04%) 2 (1.10%)
10 3 (0.91%) 0 (0.00%)
11 7 (2.13%) 4 (2.20%)
12 10 (3.04%) 4 (2.20%)
13 2 (0.61%) 1 (0.55%)
14 6 (1.82%) 0 (0.00%)
15 4 (1.22%) 4 (2.20%)
16 3 (0.91%) 2 (1.10%)
17 4 (1.22%) 1 (0.55%)
18 2 (0.61%) 0 (0.00%)
19 2 (0.61%) 4 (2.20%)
20 1 (0.30%) 1 (0.55%)
21 3 (0.91%) 1 (0.55%)
22 1 (0.30%) 2 (1.10%)
23 2 (0.61%) 1 (0.55%)
24 2 (0.61%) 0 (0.00%)
25 2 (0.61%) 1 (0.55%)
26 3 (0.91%) 0 (0.00%)
27 1 (0.30%) 0 (0.00%)
28 1 (0.30%) 0 (0.00%)
29 1 (0.30%) 0 (0.00%)
30 0 (0.00%) 3 (1.65%)
31 1 (0.30%) 0 (0.00%)
33 3 (0.91%) 0 (0.00%)
37 3 (0.91%) 0 (0.00%)
40 1 (0.30%) 0 (0.00%)
45 1 (0.30%) 0 (0.00%)
Table 5. HA and High risk only
No Aspirin Aspirin P Value
N=78 N=22
CCI: 0.498
0 69 (88.5%) 17 (85.0%)
1 2 (2.56%) 0 (0.00%)
4 0 (0.00%) 1 (5.00%)
5 3 (3.85%) 1 (5.00%)
7 1 (1.28%) 0 (0.00%)
ASA: 0.363
2 9 (12.9%) 4 (21.1%)
3 56 (80.0%) 15 (78.9%)
4 5 (7.14%) 0 (0.00%)
Elixhauser: 0.406
0 69 (88.5%) 19 (86.4%)
5 1 (1.28%) 0 (0.00%)
20 1 (1.28%) 0 (0.00%)
23 1 (1.28%) 1 (4.55%)
26 1 (1.28%) 0 (0.00%)
27 1 (1.28%) 0 (0.00%)
30 0 (0.00%) 2 (9.09%)
33 1 (1.28%) 0 (0.00%)
37 2 (2.56%) 0 (0.00%)
45 1 (1.28%) 0 (0.00%)
Table 6. HA and Standard risk only
No Aspirin Aspirin P Value
N=251 N=160
CCI: <0.001
0 128 (51.0%) 99 (64.7%)
1 38 (15.1%) 17 (11.1%)
2 17 (6.77%) 10 (6.54%)
3 16 (6.37%) 8 (5.23%)
4 12 (4.78%) 7 (4.58%)
5 13 (5.18%) 3 (1.96%)
6 16 (6.37%) 3 (1.96%)
7 3 (1.20%) 1 (0.65%)
8 3 (1.20%) 3 (1.96%)
9 2 (0.80%) 1 (0.65%)
10 2 (0.80%) 1 (0.65%)
11 1 (0.40%) 0 (0.00%)
ASA: 0.005
1 0 (0.00%) 6 (6.98%)
2 14 (18.2%) 28 (32.6%)
3 59 (76.6%) 50 (58.1%)
4 4 (5.19%) 2 (2.33%)
Elixhauser: <0.001
0 108 (43.0%) 101 (63.1%)
1 1 (0.40%) 0 (0.00%)
2 13 (5.18%) 4 (2.50%)
3 5 (1.99%) 4 (2.50%)
4 6 (2.39%) 2 (1.25%)
5 22 (8.76%) 11 (6.88%)
6 6 (2.39%) 4 (2.50%)
7 9 (3.59%) 2 (1.25%)
8 3 (1.20%) 0 (0.00%)
9 10 (3.98%) 2 (1.25%)
10 3 (1.20%) 0 (0.00%)
11 7 (2.79%) 4 (2.50%)
12 10 (3.98%) 4 (2.50%)
13 2 (0.80%) 1 (0.62%)
14 6 (2.39%) 0 (0.00%)
15 4 (1.59%) 4 (2.50%)
16 3 (1.20%) 2 (1.25%)
17 4 (1.59%) 1 (0.62%)
18 2 (0.80%) 0 (0.00%)
19 2 (0.80%) 4 (2.50%)
20 0 (0.00%) 1 (0.62%)
21 3 (1.20%) 1 (0.62%)
22 1 (0.40%) 2 (1.25%)
23 1 (0.40%) 0 (0.00%)
24 2 (0.80%) 0 (0.00%)
25 2 (0.80%) 1 (0.62%)
26 2 (0.80%) 0 (0.00%)
28 1 (0.40%) 0 (0.00%)
29 1 (0.40%) 0 (0.00%)
30 0 (0.00%) 1 (0.62%)
31 1 (0.40%) 0 (0.00%)
33 2 (0.80%) 0 (0.00%)
37 1 (0.40%) 0 (0.00%)
40 1 (0.40%) 0 (0.00%)